Jerry is working on a research project about the effectiveness of social media marketing. He found some sources with information relevant to his project, and he's trying to determine which ones are credible. Which three sources should he select to use for his project?

1). A journal article titled "Marketing Strategies: Social Media" by a university professor.

2). An article titled "Tips for Effective Social Media Marketing" on a government agency website.

5). A blog post titled "My Social Media Marketing Success" by an unknown author.

Explanation:

The sources that Jerry use to provide support to his project would include 'a journal article authored by a university professor,' 'an article on a government agency website,' and 'a blog post by an unknown author.' The key reasons for using the first two is that they offer trustworthy and reliable content that would assist in enhancing the credibility of the project and the last one would help in displaying the exact scenario without any bias(as the author is unknown). Thus, the options 1, 2, and 5 are the correct answers.

the answer would be, she updates her online profiles regularly and participates in work-related online discussions.